Phillip Yoo once was a successful movie writer, but his successful state quickly burned out as his employers said his writing style was 'too realistic', and people were already miserable enough, right? He is most likely in debt, which is why he participated in The 8 Show, and he chose the number 7

He sat in the main plaza, listening to the others talk about how many won they gain per minute, he would be lying if he said he wasn't slightly relieved he chose the second highest floor, being awarded 210,000₩ per minute... the other 7 contestants started realizing that the higher the room number was, so was the amount of money they get...

"Yes, that's the Fibonacci sequence..."

Phillip, better known as 7th Floor now, apparently, finally chimed in... as he started explaining how his statement was in fact, correct.